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                <h2>Introduction</h2>
                <p> This is a software applicacion which allows you to manage
                information related to toxic residues' production and transportation. Following, there is an explanation of how to use this
                software.</p>
                <h2>Producers and Transporters</h2>
                <h3>Listing, creating, modifying, and deleting</h3>
                <p>To list a producer or a transporter you just have to click
                on either the link Producers or the link Transporters at the top
                left corner. If you want to create, modify, or delete a producer/
                transporter you must list producers/tranportaters, then
                click on the respective bottom (new, modify, delete), and finally
                provide de information required by the form.</p>
                <p>If you list the transporters you will also be able to see
                the residues (and their respectives producers) that have been
                transported by each transporter.</p>
                <h2>Residues</h2>
                <p>Adding, modifying, or deleting a residue record is as easy
                as doing it with producers or transporters: you have to list
                all the residues going to left corner and clicking the link
                Residues, then you click on the bottom New at the bottom of the
                page, and provide the information requested, in case you want
                to create a new residue. If you intend to modify or delete an
                existing record, you just go to the record you want to modify or
                remove and click on the respective bottom next to the record.
                Remember you will be required to provide the producer of the
                residue, as two of them could have the identical name.</p>
                <h2>Components</h2>
                <h3>Listing</h3>
                <p>To knowing the components of any residue, you have to click
                on the link named Residues, and then locate the residue you are interested
                in. Afterwards, you can see the residues' components listed in
                the field Components. If you click on it, you will be taken
                to a script that will list all the components you saw, but this
                time with the quantity that the residue possesess.</p>
                <h3>Listing, creating, modifying, and deleting</h3>
                <p>To create, modify or delete a component of any residue you
                have first to list those components, and then click on the bottom
                (function) you are interested in. Only keep in mind that if you
                were deleting a residue's component you would only be deleting
                the component of a particular residue, not the component itself,
                since other producers' residues could also be made up of it</p>
                <h2>Transportation of Residues</h2>
                <p>The transportation of residues' option is perhaps the most useful
                features of this application. The idea is that each residue
                has a particular way of being transported (field type of transport
                in the form shown when you crate a residue), so it is necessary
                to be aware of the residues quantities and the transporters that
                have done the job.</p>
                <h3>Doing a transportation procedure's record</h3>
                <p>To register the information related to a tranportation procedure,
                you need to list the residues (by clicking on the link Residues),
                locate the target residue, go to the field Quantity transported,
                and then click on the link Manage. It will take you to another form
                where you will see all the records regarding the tranportation
                of the residue selected. Creating, modifying, and deleting
                one of these records follows the same reasoning as in the other
                sections.</p>
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